diff --git a/classes/stock/StockAvailable.php b/classes/stock/StockAvailable.php
index 2e47abb49..dbe95389f 100644
--- a/classes/stock/StockAvailable.php
+++ b/classes/stock/StockAvailable.php
@@ -305,7 +305,7 @@ class StockAvailableCore extends ObjectModel
 		if (!Validate::isUnsignedId($id_product))
 			return false;
 
-		$existing_id = StockAvailable::getStockAvailableIdByProductId((int)$id_product, (int)$id_product_attribute, (int)$id_shop);
+		$existing_id = StockAvailable::getStockAvailableIdByProductId((int)$id_product, (int)$id_product_attribute, $id_shop);
 		if ($existing_id > 0)
 		{
 			Db::getInstance()->update(